# Service bulletin 23\-NA\-201

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11024378
- Published by NHTSA: 2025\-10\-21
- Manufacturer's number: 23\-NA\-201
- Manufacturer's date: 2025\-09\-06
- NHTSA component: SERVICE BRAKES; ELECTRICAL SYSTEM; STEERING

## NHTSA's summary

This service bulletin advises the technician of a possible loose ground that may be causing customer concerns of Loss of Steering Assist and/or Loss of Brake Assist and Malfunction Indicator Lamp \(MIL\) Illuminated.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11024378-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11024378-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes, Electrical system, Steering

## Vehicles listed

- 2019 to 2023 CHEVROLET SILVERADO 1500
- 2019 to 2023 GMC SIERRA 1500

## Recalls for the same vehicles and component

- [25V768000](/recalls/nhtsa/25V768000.md), 2025-11-06: SERVICE BRAKES, HYDRAULIC:POWER ASSIST
- [25V390000](/recalls/nhtsa/25V390000.md), 2025-06-12: SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING:SWITCH/SENSOR/FLOAT
- [24V674000](/recalls/nhtsa/24V674000.md), 2024-09-12: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE:SOFTWARE; SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING: LAMP
- [2021602](/recalls/tc/2021602.md), 2021-09-29: Brakes
- [21V758000](/recalls/nhtsa/21V758000.md), 2021-09-29: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE
- [2020079](/recalls/tc/2020079.md), 2020-02-27: Brakes
- [20V116000](/recalls/nhtsa/20V116000.md), 2020-02-27: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
- [2020034](/recalls/tc/2020034.md), 2020-01-30: Brakes
- [20V055000](/recalls/nhtsa/20V055000.md), 2020-01-30: SERVICE BRAKES, HYDRAULIC:POWER ASSIST
- [2019631](/recalls/tc/2019631.md), 2019-12-12: Electrical

## Other bulletins for the same vehicles and component

- [N252515590](/bulletins/11027795.md), 2026-01-27, Service campaign: ELECTRICAL SYSTEM. Certain vehicles listed above, may have a condition in which the body\-to\-chassis ground strap may be corroded. Dealers will replace the ground strap.
- [23\-NA\-170](/bulletins/11024486.md), 2025-10-25, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
- [22\-NA\-161](/bulletins/11023368.md), 2025-09-27, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the same speed.
- [24\-NA\-078](/bulletins/11020268.md), 2025-07-08, Service bulletin: ENGINE; POWER TRAIN; ELECTRICAL SYSTEM. This bulletin advises the tech to replace the starter and not the trans if grinding or growling is heard from the transmission area.
- [25\-NA\-101](/bulletins/11019755.md), 2025-06-26, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM; SEATS. This service bulletin provides information on the restraint warning lamp being illuminated and the correction to this by replacing the passenger presence module.
- [25\-NA\-099](/bulletins/11019719.md), 2025-06-25, Service bulletin: ELECTRICAL SYSTEM. This bulletin advises the tech to refer to a procedure in SI to aid in diagnosing a possible wiring concern.
- [22\-NA\-242](/bulletins/11019545.md), 2025-06-16, Service bulletin: ELECTRICAL SYSTEM. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
- [PI0281L](/bulletins/11019516.md), 2025-06-12, Service bulletin: STEERING; POWER TRAIN; SUSPENSION. This preliminary informational \(PI\) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- [21\-NA\-166](/bulletins/11019325.md), 2025-06-06, Service bulletin: EXTERIOR LIGHTING; STEERING. This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.
- [24\-NA\-229](/bulletins/11019017.md), 2025-06-03, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.

JSON: [/v1/bulletins/11024378](/v1/bulletins/11024378)

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